Upper portion of a blister pack



FIG. 1 is a perspective view of an upper portion of a blister pack, embodying our new design;

FIG. 2 is a is a top view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is an opposite side elevational view thereof; and,

FIG. 6 is a back view thereof.

The bottom not shown is disclaimed. The broken lines of the blister pack are for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for an upper portion of a blister pack, as shown and described. 